The U.S. Treasury’s decision to at least double its purchases of 10- to 30-year bonds is a policy signal that argues for adding duration and positioning for a flatter curve. This move is seen as a deliberate attempt to pull down the long end of the yield curve while the department continues to fund itself at the front end.
Understanding the Treasury’s Pivot
The Treasury’s pivot toward long-bond buybacks gives duration buyers their first clear signal in months. History is on the side of the muni bid into year-end, with the outcomes of past election cycles suggesting that a split outcome – Democratic House, Republican Senate – is the single most-expected result.
Across 22 election cycles since 1982, the outcomes in which Republicans lose at least one chamber have been among the friendliest for 10-year AAA MMD. Yields have drifted modestly higher into election day, then grind steadily lower, finishing roughly 13% below election-day levels about 35 days out.
Impact on Municipal Bonds
Municipal bonds spent the summer going nowhere in particular, but that looks to be ending. The market reaction to the Treasury’s announcement was immediate and lopsided, with 10- and 30-year Treasury yields falling 3bp and 5bp, respectively. The ICE BofA Municipal Master Index returned -0.39% for the week, roughly 80bp behind Treasuries, corporates, and taxable munis.
Investors are being paid unusually well to extend, with the AAA curve remaining steep by any recent standard. The 1s30s spread is at 210bp, and the 1s10s spread is at 88bp, both at or near their three-month wides.
The case for owning municipal bonds here is rate direction and curve shape, not spread compression. Muni/Treasury ratios sit at 61.2% in 3 years, 71.2% in 10, and 87.0% in 30 – neutral against three-year history, with the 10-year point modestly cheap on a three-month basis. To make informed decisions, investors should gauge risk tolerance for ETFs.
Credit Cycle and Downgrade Data
The rating cycle has clearly turned, with Moody’s and S&P combined for 223 upgrades against 314 downgrades in 2Q26 – a 0.7-to-1 ratio, down sharply from 1.2-to-1 in 1Q26. The concentration of downgrades is the useful signal, with 17 of the 25 multi-notch downgrades being school districts and 5 being cities.
None of this is a systemic credit story, but rather a signal to be selective in the sectors where ratings are deteriorating. The analysis points toward higher-grade, longer-duration exposure and away from territories, small private colleges, and rural single-facility hospitals – the three places where the downgrade cycle is doing real damage.
Investment Strategies
For investors looking to express this view, the VanEck Long Muni ETF (MLN) is the most closely aligned, targeting the long end of the AMT-free investment-grade curve.
Investors should consider the investment objective, risks, charges, and expenses of a fund carefully before investing, as all investing is subject to risk, including the possible loss of the money invested. Past performance is no guarantee of future results, and diversification does not ensure a profit or protect against a loss in a declining market. The market is also watching ad revenue trends.
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